Add TaskStore and InMemoryTaskStore for task state management #694

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1. devcrocod

   added a parent issue on Apr 13, 2026

   • Implement SEP-1686: Tasks #421
2. github-project-automation

   added this to 2025-11-25 Implementationon Apr 13, 2026
3. devcrocod

   added

   enhancementNew feature or requestNew feature or request

   apiPublic API changesPublic API changes

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   P2Moderate issues, valuable feature requestsModerate issues, valuable feature requests

   on Apr 13, 2026
4. devcrocod

   added the

   Enhancement

   issue type on Apr 13, 2026
5. thierrypdamiba commented on May 20, 2026

   

   thierrypdamiba

   on May 20, 2026

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   Hi @devcrocod, mind if I take this on?

   I went through the ts implementation at packages/core/src/experimental/tasks/ and the python implementation at src/mcp/shared/experimental/tasks/.

   The plan is to follow the spec: TaskStore + TaskMessageQueue as separate interfaces, InMemoryTaskStore with lazy TTL eviction, sessionId: String required (aligning with #732 and how EventStore already passes streamId), pagination, and marked as experimental.

   One question: python ships a separate polling.py helper forpoll_until_terminal; ts leaves polling to consumers. I'm leaning toward leaving it out for now and letting people layer that on if they need it, but happy to include if you'd rather have it in from the start. Let me know which way you'd prefer.
6. devcrocod commented on May 26, 2026

   

   devcrocod

   on May 26, 2026

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   Hi @thierrypdamiba
   Glad to hear you'll take this issue

   One question: python ships a separate polling.py helper forpoll_until_terminal; ts leaves polling to consumers. I'm leaning toward leaving it out for now and letting people layer that on if they need it, but happy to include if you'd rather have it in from the start. Let me know which way you'd prefer.

   I agree with you, let's keep this out of scope for now
7. devcrocod commented on Jun 19, 2026

   

   devcrocod

   on Jun 19, 2026

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   superseded by SEP-2663
8. devcrocod

   closed this as not plannedon Jun 19, 2026